<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>系统异常</title>
</head>
<body>
    <h2 id="error" style="color: red;"></h2>
</body>
<script>
    window.onload=function(){
        var err = "${error}";
        if(!err){
            err = "系统异常，请联系管理员。";
        }
        document.getElementById("error").innerText = err ;
    }
</script>
</html>
